Ever lost rep because you forgot to turn on your transponder before jumping into a friendly system? Transponder Reminders is a mini-mod that adds an option to jump points leading to friendly systems1 that activates your transponder while jumping, and (optionally) to deactivate your transponder when jumping to hyperspace. If you normally prefer to keep your transponder on in hyperspace, you can disable the prompt to turn it off by setting "promptToDeactivateInHyperspace": false in transponder-reminders_settings.json.

1: Precisely, it prompts you if the system contains a market that is not already hostile and belongs to a faction whose patrols conduct transponder checks.

If anyone is still using this, it also hides some vanilla text added in 0.9 (warnings about fleets on the other side of the jump point, at the least)--I recommend against using this for now.

I do still miss the reminder to turn my transponder off when jumping to hyperspace--I will probably attempt to make a more narrowly-targeted version that adds thatwithout overriding the vanilla enhancements.